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Cheap Flights from Seattle (SEAA) to Helena (HLN)

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Flight deals from Seattle to Helena

Looking for a cheap last-minute deal or the best return flight from Seattle to Helena Airport? If you want to travel next month, return fares start from $538. Find the lowest prices on one-way and return tickets right here.
Helena.$307 per passenger.Departing Sat, 19 Sep, returning Tue, 22 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Sat, 19 Sep, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Tue, 22 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $307, select.
Helena.$328 per passenger.Departing Sat, 31 Oct, returning Thu, 5 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Sat, 31 Oct, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Thu, 5 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $328, select.
Helena.$457 per passenger.Departing Tue, 29 Sep, returning Fri, 2 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Fri, 2 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $457, select.
Helena.$538 per passenger.Departing Sat, 4 Jul, returning Fri, 10 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Sat, 4 Jul, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Fri, 10 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $538, select.
Helena.$585 per passenger.Departing Mon, 28 Sep, returning Thu, 1 Oct.Return flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Seattle / Tacoma International on Mon, 28 Sep, arriving in Helena.Inbound direct flight with Alaska Airlines departs from Helena on Thu, 1 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $585, select.
Helena.$594 per passenger.Departing Wed, 15 Jul, returning Wed, 22 Jul.Return flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Seattle / Tacoma International on Wed, 15 Jul, arriving in Helena.Inbound direct flight with Alaska Airlines departs from Helena on Wed, 22 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $594, select.
Helena.$718 per passenger.Departing Thu, 1 Oct, returning Sun, 4 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Thu, 1 Oct, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Sun, 4 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $718, select.
Helena.$855 per passenger.Departing Fri, 31 Jul, returning Sun, 2 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Fri, 31 Jul, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Sun, 2 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $855, select.
Helena.$952 per passenger.Departing Wed, 23 Dec, returning Wed, 30 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 23 Dec, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Wed, 30 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $952, select.
Helena.$1,278 per passenger.Departing Wed, 24 Jun, returning Sun, 28 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 24 Jun, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Sun, 28 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,278, select.
Helena.$1,434 per passenger.Departing Wed, 24 Jun, returning Tue, 7 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 24 Jun, arriving in Helena.Inbound indirect flight with Delta, departs from Helena on Tue, 7 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,434, select.

Find the cheapest month to fly from Seattle to Helena

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Helena flights are currently cheapest in September.
Jun
from $1,278
Jul
from $538
Aug
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Sep
from $307
Oct
from $718
Nov
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Dec
from $952
Jan
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Feb
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Mar
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Apr
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May
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Direct flights from Seattle to Helena

Seattle to Helena: Alternative routes

Compare routes from Seattle to Helena below. You may find an airport to fly into that's cheaper, faster, or easier than Helena.

Helena

4km from central Helena
ClosestCheapest
from $307
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Butte

80km from central Helena
from $527
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Seattle to Helena: Flight information

The things to know before you go.
Cheapest flight found$307
Cheapest month to flySeptember
Average flight time1 hr, 36 mins
Most popular airlineHorizon Air
Average flights per week16

Finding cheap flights from Seattle to Helena: Frequently asked questions

The best price we found for a return flight from Seattle to Helena is $307. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 36 minutes is the average flight time from Seattle to Helena.
Horizon Air and Alaska Airlines fly direct from Seattle to Helena.
As of June 2026, there are 16 flights per week flying from Seattle to Helena.
The cheapest month to fly from Seattle to Helena is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Helena Airport on Saturday, 19 September 2026.
Yes – the average flight time is 1 hour and 36 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Helena but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Helena is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Seattle to Helena Regional Airport (HLN): What you need to know

  • Your adventure will begin at Seattle-Tacoma International Airport (SEA), the main airport in Seattle. Search for flights from Seattle to Helena Regional Airport (HLN) that take off from this terminal.

  • Expect to be in the air for 1 hour 35 minutes. That's the average duration of a direct Seattle to Helena Regional Airport flight.

  • Helena is one hour ahead of Seattle. Helena Regional Airport is located in Helena, which is in the UTC-7 timezone.

  • Seattle-Tacoma International Airport (SEA) to Helena Regional Airport (HLN) is the most popular route, with 6 direct services every week. Travel from SEA to HLN on Alaska Airlines's 12:55pm departure.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your flight from Seattle to HLN.

  • Going away during a peak month like July? Busy periods (like Thanksgiving, Christmas and New Year) can easily add another hour at security. Be extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) provides a hassle-free way to reach your destination. Nonstop flights from Seattle to Helena Regional Airport (HLN) operate out of this terminal.

  • When departing from SEA, you can catch a direct flight from Seattle to Helena Regional Airport with Alaska Airlines.

  • Alaska Airlines is the airline most travellers choose for flights from SEA to HLN.

  • Alaska Airlines takes the top spot for on-time performance. An exceptional 80.0% of its services on this route arrive as planned.

  • SEA is about 23 kilometres from central Seattle. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 35 minutes.

  • Have an early flight from Seattle to Helena Regional Airport? Avoid the last-minute rush to the terminal (and sneak in some bonus sleep) by picking one of these hotels close to Seattle-Tacoma International Airport:

  • Seattle-Tacoma International Airport has an excellent on-time record, reducing the likelihood of delays. Departures from SEA land at their destination as scheduled 80% of the time.

Seattle Paine Field International Airport (PAE)

  • You can reach PAE from the centre of Seattle in approximately 40 minutes by car, depending on traffic. The ride by public transport takes roughly 1 hour 30 minutes to travel the 40 kilometres or so.

  • Want to treat yourself to an extra night away before your Seattle to HLN flight? Kick back in a hotel near Seattle Paine Field International Airport before your break officially begins. These stays have a room with your name on it:

  • Flights from Seattle Paine Field International Airport are known for their punctuality, with 80% of them touching down as expected.

About Helena Regional Airport (HLN)

Getting from Helena Regional Airport (HLN) to central Helena

  • Helena Regional Airport is around 13 kilometres from central Helena. It takes around 15 minutes or so to get to the city by car.

  • If you're taking public transport, expect a journey time of around 25 minutes.

How to find the cheapest flights from Seattle to Helena Regional Airport (HLN)

  • $195 is the best price for a one-way ticket from Seattle to Helena Regional Airport. Return flights start from $307. These prices may change based on demand.

  • Book four months before your departure date. Pricing trends suggest that this is the ideal window for finding cheap flights from Seattle to HLN.

  • The best month for picking up cheap Seattle to Helena Regional Airport tickets is September. Use the 'Whole month' tool to compare prices, then select the dates that offer the lowest fares.

  • There's no need to check every day to find out if fares have dropped when you set up a Price Alert. We'll notify you when a better deal comes up on plane tickets from Seattle to HLN.

  • Filters make it easier to land a deal on your flight from Seattle to Helena Regional Airport. Choose the departure times, carriers and stops that look good to you. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Seattle to Helena Regional Airport (HLN)

  • It's time to decide your travel dates for your flight from Seattle to Helena Regional Airport (HLN). July is the peak month for travel to Helena. If crowds aren't your thing, go in December.

  • When booking your Seattle to HLN plane ticket, consider the weather you're most comfortable in. July is the warmest month in Helena, with temperatures ranging from 9ºC (48ºF) to 31ºC (88ºF).

  • Search for cheap tickets from Seattle to Helena Regional Airport in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -17ºC (1ºF) and 3ºC (37ºF).

More about Helena

  • When it comes to searching for somewhere to rest your head, you'll find the best stays in Helena right here. Browse these hotels after you've booked your flight from Seattle to Helena Regional Airport:

  • Spring Meadow Lake State Park and Mount Helena are a couple of popular attractions to add to your Helena to-do list. Continue your sightseeing adventures at Holter Museum of Art.

Explore more of the United States

  • Helena is always a good idea, but there are so many other parts of the United States waiting to be discovered. Around 290 kilometres east of Helena, a trip to Billings will keep you on the go. Don't miss top attractions like Museum of Women's History, Yellowstone Art Museum and The Rimrocks.

  • Around 153 kilometres west of Helena, Missoula is another essential stop in the United States. Get a taste of what this destination has to offer at Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum.

Plan the rest of your trip from Seattle to Helena

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.